The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 2026
Filed:
Aug. 26, 2021
Sanyo Electric Co., Ltd., Kadoma, JP;
PANASONIC ENERGY CO., LTD., Osaka, JP;
Abstract
A positive electrode active material for nonaqueous electrolyte secondary batteries according to one embodiment of the present disclosure contains a lithium transition metal composite oxide which is represented by general formula LiNiCoAlXO(wherein 0.9≤a≤1.2; 0.88≤b≤0.96; 0≤c≤0.12; 0≤d≤0.12; 0≤e≤0.1; 1.9≤f≤2.1; (b+c+d)=1; and X represents at least one element that is selected from among Mn, Mg, Ca, Sr, Ba, Ti, Zr, V, Nb, Ta, Mo, W and B); and the lithium transition metal composite oxide has a pore volume of pores having a pore diameter of 0.3 μm or less of from 6×10mL/g to 50×10mL/g, while having a particle fracture strength of 120 MPa or more at the volume average particle diameter.